Yellow Gold Brooch with Sapphires, Citrines and Diamonds

18k yellow gold brooch set with sapphires, citrines, and diamonds. Four oval-cut sapphires, totaling approximately 0.84 carats (each sapphire weighing approximately 0.12 carats), surrounded by four marquise-cut citrines totaling approximately 0.68 carats (each citrine weighing approximately 0.17 carats), and twelve brilliant-cut diamonds, totaling approximately 0.18 carats (six diamonds of 0.02 carats and six diamonds of 0.01 carats). Dimensions: 6.30 cm x 0.90 cm. Total weight: 5.11 g. Owl hallmark. Excellent condition.